Some changes have taken place in our fish tank. First, the glo-fish. At one point, we had six glo-fish, 2 yellow (one of which had lovely exotic flowing fins), 2 red, and 2 orange. All but one yellow one (and not the one with lovely exotic flowing fins) have disappeared over the course of a couple of weeks. They were too big to have been eaten directly by the tetras. The most plausible explanation I found online was that they died and then once dead were picked to disappearance by the other fish.
At any rate, they are gone. There is only one left, and glo-fish are schooling enough fish that it is recommended to keep them in groups of 5 or more. On the one hand, I don’t want to replace the glo-fish–they are genetically engineered, and who needs that in their fish tank; they are more expensive than the other fish we have; and most importantly, are the only fish so far to have died in the tank. If our tank is somehow not suitable for them, let’s enjoy other fish instead.
On the other hand, that one glo-fish is left, stubbornly hanging on. And it doesn’t seem happy. It chases the barbs and the linia perugae, nipping at their tails. It flits from one side of the tank to the other, a longer, while the other fish congregate in relaxed social groups. Maybe it will die soon, I keep thinking; on the other hand, the longer it survives, the more I fear I owe it to the glo-fish to get it some companions. Maybe if it makes it to the weekend we will try once more.
While we have less glofish than we once had, our numbers of linia perugae continue to incresae. First I saw three new babies; now I believe they have been winnowed to two. I hope this is a sign that the tetras are doing their job. A baby now and then is a sweet, fine thing, but my tank is only 20 gallons; there is a limit to how many linia perugae it can happily hold.
These linia perugae are deceptive in their plainness. Our four original linia perugae–we named them Eenie, Meenie, Mini, and Moe–were all females. Eenie and Meenie were virtually indistinguishable, Mini was the smallest, and Moe was the big fat earth goddess fish who kept having babies. Two are now male. Apparently, linia perugae are capable of such magic. And it makes perfect sense. Moe is the quintissential female–even when there weren’t any males to compete for, Eenie and Meenie had no chance to compete with her. But now, now they are dashing males, flashing their silver bellies like knights in armour chasing the golden barb dragons to impress Moe and her mini mi, Mini. One of them in particular has sprouted a most impressively bold, black upper fin, which he flashes and ripples like a card shark showing his hand.
The barbs are happily schooling with the Linia perugae; the two groups have taken each other up, neighborly like, and jostel together along one corner of the tank when they see me approach around the dinner hour.
The tetras are thriving as well, flashing from one side of the tank to the other but sticking to themselves.
And finally, the algae eating fish, or “allergy fish” as my children call it, seems to have settled in. Occasionally it will chase one of the other fish away from its hideout, but mostly it googles with its goggly eyes and keeps the tank clean. I don’t see any algae in there, which makes me worry it might starve, but since it hasn’t starved I hope that the algae eating fish and the algae have established a perfect symbiosis.